A New Model of Global Solar Radiation based on Meteorological Data in Bejaia City (Algeria)

In order to model the global solar radiation based on meteorological parameters for the Bejaia site, we established a database of more than 100000 points obtained by recording every eight minutes of illumination and meteorological parameters (sunshine hours, ambient temperature, air pressure, relative humidity and rainfall). The daily averages were used to test models with 2, 3, 4 and 5 parameters and the relationship with the coefficient of the highest correlation was chosen. Two thirds were used to establish the model and one third for validation. We compared its performance with four models in the literature (Angstrom- Prescott, Bahel, Newland and Abdalla) by calculating the various usual errors (MBE, MPE and RMSE).